At the same time, I may be inclined to invest in Cleveland's cash flow market to replace my income, and aim for an early retirement, more travel at an earlier stage, all that good stuff.

In middle of a rehab in Cincinnati and stuck with 2 questions. 1) Apparently the one who measured our counter tops wasn't all quite accurate and we are left with a sink that is not centered with the windows, what would you do?

You can’t really expand in any measurable way by pairing your service with companion services.

If it is simply being the best, what measurements and metrics will you achieve to demonstrate that?

What is in your control is to take the proper measures and not entertain heresy or go down the fear rabbit hole.

A test doesn't measure that.The personality tests can only tell so much for deciding if someone will be a natural at sales or not.

For MFH I would aim much higher. 

This topic as already been covered a few times but as the market changes so do our expectations and profit margin targets.what % net profit margin (taxes excluded) on exit value do you flippers and developers achieve and aim for in the current market on deals above 500k?

This is the most important part of your REI Plan, usually left out, and why most plans fail:  You have to break that number down into measurable "milestones". 

My response metric is measured in the same way if I get spammed by someone trying to sell me services, so I'm under the same pressure to respond to that as I am a legitimate guest inquiry.